Multiple-drill attachment for drilling-machines.



No. 865,249. PATENTED SEPT. 3, 1907..

H. J. JAQUITH.y

MULTIPLE DRILL ATTACHMENT FOR DRILLING MAGINES. ArPLIoATIoN funn1120.17, 1906.

s SHEETS-SHEET 1.,

' No. 865,249. TATENTED SEPT. a, 1907.

- II. I. IAQUI-TH. MULTIPLE DRILL ATTACHMENT EUR DRILLING MACHINES.

APPLICATION FILED DEO. 17,1906.

3 SHEETS-SHEET 2.

No. 865,249. PATHHTED SEPT. 3, 1907. H. J. JAQUITH. l MULTIPLE DHIL-LATTACHMENT EOE DHILLING MACHINES.

APPLIUATION FILED 1130.111906.

3 SHEETS-SHEET 3` J Jalllulh 26m/ma Invent-or: Jlrr y /Q/ Wbwssas:

l UNITED sTATEs PATENT oEEioE. i

MULTIPLE-DRILL ATTACHMENT FOR DRILLING-MCHINES.

No.se5,e49.

Specification of Letters Patent.

Patented Sept. 3, 1907.

Application filed December 17| 1906. Serial No. 348,153-

To all whom 'it concern:

Be it known that l, HARRY J. JAQUITH, a citizen of the United States ofAmerica, and a resident of Boston, in the county of Suffolk and State ofMassachusetts, have invented certain new and useful Improvements inMultiple-Drill Attachments for Dri1ling-Machines, of which the followingis a specification.

This invention relates to multiple' drilling machines and has for itsobject the production of an apparatus for simultaneously drilling aplurality of holes through a last intended subsequently to be dividedand hinged together7 said holes being adapted to receive pins. to securein position the connector between the heel and toe portion of said last.

The invention consists primarily in an attachment to be applied to thechuck of any ordinary drilling machine, the casing or support for whichis provided with means to prevent rotary motion. thereof and is alsoprovided with a plurality of revoluble drill holding members supportedby said casing and mechanism interposed between said members and thechuck of the drilling machine whereby the rotation of the latter causesa simultaneous rotation of the revoluble drill holding members.

One feature of the invention consists in-a suitable fixed guide toprevent the spread of the plurality of drills when in operation while anadjustable support adapted to hold the last while being operated uponforms another important feature.

The invention further consists in certain novel features ofconstructionand arrangement of parts which will be read ily understoodby reference tothe description of the drawings and to the claimshereinafter given.

Of the drawings: Figure l represents a front elevation of a portion of adrilling machine with the improvements embodying the subject-matte* ofthe present application applied thereto. Fig. 2 represents a. sideelevation of the same. Fig. 3 represents a horizontal section throughthe multiple drill attachment on line 3-3 on Fig. 4. Fig. 4 representsa. transverse vertical section online 4-4 on Fig.` 3. Fig. A5 representsa section through a portion of the column of the drillingM machineshowing in plan a portion of the supporting table and the adjustablelast support mounted thereon. Fig. 6 represents a horizontal sectionthrough the last support the cutting plane being on line 6-6 on Fig. 7.AFig. 7 represents a vertical section of the same on line 7-7 on Fig. 6.Fig. 8 represents a section through the supporting column of thedrilling machine showing in plan the multiple drill attachment andadjustable connector to prevent the rotation of the casing thereof, andFig. 9 represents a section through a two-part hinged last showing themeans of Connecting and locking the heel and toe portions together andthe location of the holding pins extending transversely through saidlast and the connecting devices.

Similar characters designate like parts throughout the several figuresof the drawings.

In the drawings 10 represents the column of a drilling machine of anywell-known construction provided with bearings ll and 12. The bearingl-l supports the hub l3 of a revoluble bevel gear 14 driven by a pinionl5 on the end of a shaft 16 revoluble by any suitable means in suitablebearings 17 and 18 forming a part of the column .10. The hub 13 isprevented from moving longitudinally of its bearing by means of the,collar 19 secured thereto. Extending through the hub 13 is a spindle 20provided with a spline 2l into which projects a key 22 fixed to the hub13 so that the spindle 20 is permitted tomove longitudinally of said hub13 but is prevented from any rotative movement independent thereof. Thespindle 2O extends through a vertically movable sleeve 23 supported inthe bearing l2 in which it is adapted to be vertically reciprocated bymeans of the handle 24 secured to a shaft 25 on the inner end of whichis secured a pinion 26 meshing withthe rack 27 formed upon said sleeve23.

.The extreme lower end of the spindle 20 is provided with a suitablechuck 28 adapted to rotate with said spindle. The chuck 28 and theadjustable collars 29 threaded to the spindle 20 prevent said spindlefrom being moved longitudinally oi the sleeve 23 .whe free rotationtherein is permitted. v

Beneath the chuck 28 is a table 30 mounted upon a suitable arm 3ladapted for vertical movement along the column 10 by means of the handle32 driving through the gears 33 and 34 the revoluble shaft 35 threadedto the nut 36 on the vertically movable member 31. All of lthe partsheretofore described 4are old and may be varied to suit differentconditions, it being perfectly obvious thatpth'e essential features tobe pro-V vided are a suitable work supporting table and a revolublechuck together with means for reciprocating one of these elements towardand from the other at the Will of the operator.

The present invention consists primarily in providing an attachmentwhich will carry a plurality o revoluble. drills operable by therotation of the chuck 28. To carry out this invention, a casing 37 isprovided having a rearwardly extending arm 38 to which is adjustablyconnected by means of thescrews 39 a member 40, the rearend of which isbent upwardly as at 41 and is provided with a slot 42 through whichextends a screw 43 `casing 37 by means of the rotation o the .chuck 28.

loo

The lower wall o the casing 37 is provided with a plurality of bosses 48in each of which is mounted a revo-- luble member 49 having at its lowerend an enlarge- 'ment 50 having interposed between the upper shoulder ofwhich and the lower facev of the boss 48 a suitable iber washer 51. Thelower end of each of the revoluble members 49-50 is provided with asocket in which a drill 52 is adapted to be insert'ed and secured inposition by means oi the set screw 53.

On the upper end oi each of the revoluble members 49 is secured,respectively, a pinion 54, 541, 54, 54", and 54e. One of the revolublemembers 49 extends further into the interior of the casing than theother members and the pinion 54 secured to its upper end meshes with theupper portion of the teeth of said annular gear 47. The pinions 54h,54', and 54d are each located in a lower plane and engage and mesh withthe lower hali of the teeth of said annular gear 47.

The pinion 54e is so located that it is necessary to provide an idlergear 55 interposed between said pinion and the pinion 54 by which thepinion 54e is driven in the same direction as the other pinions mountedupon the upper ends of the revoluble members 49. Interposed between eachof the pin-ions 54 and the inner face of the lower Wall oi the casing 37is a fiber washer56. lt is obvious that when the chuck 28 is revolvedthe spindle 44 held thereby will be rotated therewith andcause themember 45 and the annular gear 47 to be likewise rotated thus insuringarevolution through the pinions 54 of each of the revoluble members 49and the consequent rotation oi the drills 52 held thereby.

On the table 30 is adjustably secured a member 60 provided with alongitudinal slot 6l through which the clamp screws 62 extend into thetable 30. It is obvious that by loosening the clamp screws 62 thismember may be adjusted longitudinally of the slot Gl in either directionand again clamped in adjusted position.

The member 60 is provided with a vertical wall 63 which is provided atone end with a vertical slot 64 in which is mounted a block 65 adaptedto be adjustable vertically in said slot 64' and clamped in position bythe nut 66 threaded to a rearwardly extending threaded hub 67. Threadedto the interior of said block 65 is a rod 68 adapted to be adjustedlongitudinally therein and locked in adjusted position by means oi thenut 69 bearing against the outer face of the threaded hub 67. Thisthreaded rod is provided with a collar 70 which forms a guide for thelast, the outer portion 71 of said rod being of a diameter adapted tofit the jack socket of a last. j

The vertical wall 63 of the adjustable member 60 is provided withanother slot 72 at right angles to the slot 64 and has mounted therein ablock 73 adapted lor horizontal adjustment in the horizontal slot ofsaid wall and clamped in adjusted 'position by means of the nut 74threaded tothe rearwardly extending threaded# shank 75 thereof. I i

Threaded to the block 73 is a threaded spindle 76 -said spindle beingadapted to be adjusted through said block 73 and locked in adjustedposition by means of the nut 77 threaded to its rear end. The front endof the spindle 76 is provided with a suitable pad 78 adapted to supportthe toe portion of the last. On the vertical wall 63 adjacent to thehorizontal slot 72 is a scale 72* by which the position of said block 73may be regulated for various sizes of lasts.

. of lasts as follows.

The present invention is used in the manufacture' As soon as the last4comes from the lathe it is taken to a drilling machine and the jacksocket 79 is drilled therein. The last is then taken toa machineembodying the features oi the present invention and the last is placedupon an adjustable .last support with the shank 7l extending into thecause the drills when operating upon a last to pass l through the samein a direction' at right angl( s to the center of the last. The pad 78may be adjusted longitudinally of the member 60 for different sizes oflasts and lnay be adjusted outwardly from thevertical wall 63 toaccommodate itseli'tovarious sli-apesol' lasts. Resting upon the upperedge of the'vertical wall 63 is a plate 80 adjustably secured to an arm81 bolted at 82 to the column l0. The outer end of the plate 80 isprovided with a plurality of openings extending therethrough located Ain axial alinement with the axis of the revoluble members l49.- Thedrills 52 extend through the` openings in4 said plate 80 for the purposeof preventing the drills from spreading when they first contact with theinclined or curved sides of the last. been bored through the last thelast is then sawed in two in the usual manner as shown in- Fig. 9 andslots 81-82 are cut in the toe and heel portions. The hinge plate 83 isthen inserted in these slots. The hinge pin 84 is driven through one ofthe openings in the toe portion and through the plate 83. The pin 85 isdriventhroughanother of the openings in the toe portion and through theslot 86 in said plate and the securing pins 87 are driven'through thetwo openings in the heel portion and lthe corresponding openings in the.hinge plate. The lock 89 is then secured in position by means of thepin 90 extending-through the same and through the holes drilled thereforin the upper part oi the toe portion* Y While the apparatus is shownprimarily adapted for use in drilling a plurality of holessimultaneously 1. The combination with a revoluble chuck adapted forendwise movement; of -a plurality of drills operated thereby; a tahle;.va member adjustable transverselythereof` beneath said drills.; and ahorizontally projecting work support thereon.

2. The combination with a revoluble chuck adapted for' endwise movement;of a plurality of drills operated thereby; a table; a memberadjustabletransversely thereof beneath said drills; and a worksupporting pin thereon adapted to enter the socket of a last andadjustable at right angles to said member.

3. The combination with a revoluble chuck adapted for When the holeshave endu'ise movement; of a plurality of drills operated tbereby; atable; a member adjustable transversely thereof beneath said drills; anda shouldered work supporting pin thereon adjustable at right angles tosaid member.

4. The combination with a revoluble chuck adapted for cndwise movement;of a plurality of drills operated thereby; a table; and a worksupporting pin adjustable toward and from said table and adapted toenter the socket of a last to position it during the operation ofdrilling.

5. The combination with a revoluble chuck adapted for endwise movement;of a plurality of drills operated tberei by'; a table; a Work supportingpin adjustable toward and from said table and adapted to enter'thesocket of a last to position it during' the operation of drilling; and arest for the free end ot' said Work.

(i. The combination with a revoluble chuck adapted for endwise movement;of a plurality of drills operated thereby; a table; a work supporting.,Ypin adjustable toward and from said table and adapted to enter thesocket of a last to position it during the operation of drilling; and anadjustable rest for the free end of said work.

7. The combination with a revoluble chuck adapted for endwise movement;of a plurality of drillsoperated there' by; a table; a work supportingpin adjustable toward and from said table and adapted to enter thesocket of a last to position it during the operation of drilling; and arest adjusiably secured to said member and movable toward and from saidwork supporting pin.

also adjustable in a direction at right angles to said` member.

D. The combination with a revoluble chuck adapted for `endwise movementof a plurality of drills operated thereby; a table; a member adjustabletransversely of said table; a work supporting pin thereon adapted toenter the socket of a last and provided with an index; and a scale onsaid member to register the position of said support.

10. The combination with a revoluble chuck adapted for endwise movement;of a plurality of drills operated thereby a table; a member adjustabletransversely .of said table; a work supporting pin thereon adapted toenter the socket of a last and provided with an index; a scale on saidmember to register the position of said support; an adjustable rest; anda scale on said member to register the position of said rest.

Signed by me at Boston, Mass.` this 10th day of December, 1906.

HARRY J. JAQUITII.

Witnesses WALTER E. LOMBARD, EDNA C. CLEVELAND.

